-er -ic -up c-- ccc ccd cce cci cco ccp ccr ccs ccu cdc cdd cde cdi cdo cdp cdr cds cdu ce- cec ced cee cei ceo cep cer ces ceu ci- cic cid cie cii cio cip cir cis ciu co- coc cod coe coi coo cop cor cos cou cpc cpd cpe cpi cpo cpp cpr cps cpu crc crd cre cri cro crp crr crs cru csc csd cse csi cso csp csr css csu cuc cud cue cui cuo cup cur cus cuu dcc dcd dce dci dco dcp dcr dcs dcu ddc ddd dde ddi ddo ddp ddr dds ddu de- dec ded dee dei deo dep der des deu di- dic did die dii dio dip dir dis diu doc dod doe doi doo dop dor dos dou dpc dpd dpe dpi dpo dpp dpr dps dpu drc drd dre dri dro drp drr drs dru dsc dsd dse dsi dso dsp dsr dss dsu duc dud due dui duo dup dur dus ec- ecc ecd ece eci eco ecr ecs ecu ed- edc edd ede edi edo edp edr eds edu eec eed eee eeo eep eer ees eic eid eie eii eio eip eir eis eiu eo- eoc eod eoe eoi eoo eop eor eos eou ep- epc epd epe epi epo epp epr eps epu erc erd ere eri ero erp err ers eru es- esc esd ese esi eso esp esr ess esu eu- euc eud eue eui eup eur eus i-d icc icd ice ici ico icp icr ics icu idc idd ide idi ido idp idr ids idu ie- iec ied iee iei iep ier ies iic iid iie iii iio iip iir iis iiu io- ioc iod ioe ioi ioo iop ior ios iou ipc ipd ipe ipi ipo ipp ipr ips ipu ir- irc ird ire iri iro irp irr irs iru is- isc isd ise isi iso isp isr iss isu iu- iuc iud iue iui iup iur ius o-i oc- occ ocd oci oco ocp ocr ocs ocu odc odd ode odi odo odp odr ods odu oec oed oee oei oeo oep oer oes oic oid oie oii oio oip oir ois oiu oo- ooc ood ooi ooo oop oor oos op- opc opd ope opi opo opp opr ops or- orc ord ore ori oro orp orr ors oru os- osc osd ose osi oso osp osr oss osu ou- ouc oud oue oui ouo oup our ous p-p pcc pcd pce pci pco pcp pcr pcs pcu pdc pdd pde pdi pdo pdp pdr pds pdu pec ped pee pei peo pep per pes peu pic pid pie pii pio pip pir pis piu poc pod poe poi poo pop por pos pou ppc ppd ppe ppi ppo ppp ppr pps ppu prc prd pre pri pro prp prr prs pru ps- psc psd pse psi pso psp psr pss psu puc pud pue pui pup pur pus puu rcc rcd rce rci rco rcp rcr rcs rcu rdc rdd rde rdi rdo rdp rdr rds rdu re- rec red ree rei reo rep rer res reu ric rid rie rii rio rip rir ris roc rod roe roi roo rop ror ros rou rpc rpd rpe rpi rpo rpp rpr rps rpu rrc rrd rri rrp rrr rrs rru rsc rsd rse rsi rso rsp rsr rss rsu ruc rud rue rui ruo rup rur rus ruu scc scd sce sci sco scp scr scs scu sdc sdd sde sdi sdo sdp sdr sds sdu se- sec sed see sei seo sep ser ses seu sic sid sie sii sio sip sir sis siu soc sod soe soi soo sop sor sos sou spc spd spe spi spo spp spr sps spu sr- src srd sre sri sro srp srr srs ss- ssc ssd sse ssi sso ssp ssr sss ssu suc sud sue sui suo sup sur sus suu ucc ucd uce uci uco ucp ucr ucs ucu udc udd ude udi udo udp udr uds udu uec ued uee uei uep uer ues uic uid uie uii uio uip uir uis uiu uoc uod uoe uoo uop uor uos up- upc upd upe upi upo upp upr ups upu ur- urc urd ure uri uro urp urr urs uru usc usd use usi uso usp usr uss usu uuc uue uur uus uuu